<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="./vue.js"></script>
</head>
<body>
    <div id="app">
    用户名<input type="text" v-model.lazy="user.userName">{{user.userName}}
    密码<input type="number" v-model.number="user.password">{{user.password}}
    密码<input type="text" v-model.trim="user.password">{{user.password}}
    </div>
<script>

var vm=new Vue({
     el:'#app',
     data:{
        user:{
            userName:"admin",
            password:"admin"
        }

     }


});

</script>
</body>
</html>